Door opening



No. 6|9,626. v Patented Feb. l4, I899. E. B. SLONACHEB. DOOR OPENING,CLOSING, AND LOOKING DEVICE.

(Application filed Sept. 26, 1898.)

3 Sheets-Sheei I.

(No Model.)

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N0. 6l9,626. Patented Feb. l4, I899. E. B. SLONACHER.

DOOR OPENING, CLOSING, AND LOOKING DEVICE.

(Application filed Sept. 28, 1898.) (No Model.) 3 Sheets-Sheet 2.

am tm/wiloz ZZo'fiZSZGILQC/Zer NO. 619,626. v Patented Feb. l4, I899.

E. B. SLONACHER. DOOR OPENING, CLOSING, A'N'D LOCKING DEVICE.

(Application filed Sept. 26, 1898.) I

3 SheetsSheet 3.

(No Model.)

E80 BZSZOnm/zek 6 W M d -IT D' STATES PATENT OFFICE.

ELI B. SLONACHER, OF GREENSBURG, PENNSYLVANIA.

DOOR OPENING, CLOSING, AND LOCKING DEVICE.

SPECIFICATION forming part of Letters Patent No. 619,626, dated February14, 1899.

Application filed September 26, 1898. Serial No. 691,921- (N model.)

To all whom it may concern.-

Be it known that LELI B. SLONACHER,a citizen of the United States,residing at Greensburg, in the county of Westmoreland and State ofPennsylvania, have invented certain new and useful Improvements in DoorOpening and Closing and Looking Devices; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to door opening, closing, and locking devices;and it consists, essentially, of an actuating-motor having controllingmechanism, an irregularly-channeled slidable device connected to saidcontrolling mechanism and adapted to be operated by a projection on anadjacent movable object, and a door-operating lever attached to anopposite part of said motor.

The invention further consists of the details of construction andarrangement of the several parts, which will be more fully hereinafterdescribed and claimed.

The object of the invention is to automatically open and close a door ofan elevatorshaft and dispense with the necessity of manual operation forthis purpose and always insure a tight closure which will resistexterior efforts to dislodge or unfasten the same, and thereby avoidaccidents arising from carelessness or neglect.

In the accompanying drawings, Figure 1 is a perspective view of aportion of an elevator shaft and cage in dotted lines, showing thearrangement of the improved mechanism. Fig. 2 is an enlarged elevationof the mechanism attached to the shaft and broken through in parts. Fig.3 is a section on the line w a: of Fig. 2, looking in the direction ofthe arrows. Fig. 4 is a detail view of the engaging device attached tothe elevator-cage. Fig. 5 is a section on the line y y of Fig. 2.

Referring to the drawings, wherein similar numerals of reference areemployed to indicate corresponding parts in the several views, thenumeral 1 designates a cylinder of suitablelength and resistance andhaving opposite heads 2. Secured to upper and lower sides of theopposite heads 2 by their connections are valve globes or casings 3, 4,5, and 6. Thesevalve-casings have suitable slidevalves therein, whichmay be of any preferred construction, and to the upper side of valves 3and 4 a feed-pipe 7 is secured and runs from any suitable point Where asource of supply of a propulsive medium is located. To the valves 5 and6 a discharge-pipe 8 is also attached and can run away from themechanism any distance. Each pair of valves 3 and 4 and 5 and 6 haveconnected to the valve-stems 9 and 10 thereof tubular rods 11 and 12.All of the valve-stems from the valve: casings extend inwardly towardeach other, and at one end arms 13 and 14 are connected to the rods 11and 12, respectively, and also pivotally attached to a lever 15, whichis fulcrumed, as at 16, on one of the heads 2 of the cylinder. The upperend of said lever 15 passes through a cylindrical casing 17 and issecured by a screw or bolt 18-, working in slots 19, springs 20 beinglocated within the casing to cushion the movement of the lever and avoida sudden jar on the arms 13 and 14 and the rods 11 and 12. Thecylindrical casing 17 has a screw-cap 21 at one end for the purpose ofproviding convenient means of adjusting the several parts, and pivotallysecured to the outer end of .said casing, through the medium ofaiprojection 22, are a pair of connecting bars or rods 23, which areconverged toward this point and have their diverging opposite endsmovably attached to the upper and lower portions of a flange 24 of alink 25. This link is formed with a channel 26 by means of oppositedownwardly-extending flanges 27, as shown in Fig. 5, and said channel isdeflected at opposite ends and vertical at the center, as at 27 Theopposite ends of this link are connected to sliding rods 28, movable inguides 29 and shift either to right or left.

In one head 2 of the cylinder 1 is a gland 30 and packing-nut 31, inwhich a piston-rod 32, connected to a suitable piston within thecylinder, has free movement, and this piston-rod is attached to a slide33, movable on a guide 34, and at its outer end beyond the-point ofnected to a link 35, which is movably at tached to a door-operatin glever 36,fulcru med at 37 and having an upper enlarged slotted end 38,in which a turn-head 39, secured to the door, has movement.

On the elevator-cage an arm or bolt 40 is secured and has on its outerend a Wheel 41, which is yielding and slightly spring-actuated throughthe medium of a spring 42, surrounding said bolt or arm. This wheel isadapted to ride in the channel 26 of the link 25 and first entersthrough one of the deflections in accordance with an upward or downwardmovement of the cage and throws the said link in one direction andafterward in the reverse direction when reaching the oppositedeflection. Either of the movements of the link is continued until thecentral vertical portion of the channel is reached, when the door willbe permitted to stand open and the cage will be at a proper positionopposite the door-opening in the shaft.

The improved device is intended to be operated either by steam, water,air, or any other propulsive medium, which is conducted through the pipe7 and after use passes-out through the pipe 8. Primarily the parts allact and are set to hold the door closed, and, for example, on thedownward movement of the cage the wheel 41 strikes the upper part of thelink 25 and gradually moves it to the right, thereby shoving the upperend of the lever 15 over in the same direction through the medium of thebars or rods 23, and opens the valves in the casings 3 and 6 and closesthose in casings 4 and 5. This permits the propulsive medium to come inat the left end of the cylinder against the adjacent side of the pistonand force the latter to the right, shove the piston-rod 33 outwardly,and the resistance that may exist on the opposite side of said piston ispermitted to escape through the valve-casing 6 and pipe 8. This movementof the piston through the link 35 swings the lever 36 to the left, andthe door is slid to the left and opened, the movement of the door beingcompensated for by the enlarged slotted end 38 of the lever 36. Theopening movement of the door will continue until the.

roller 41 reaches the vertical portion of the channel 26, where a stopcan be made, or if no stop is made the said roller then passes on downto the lower deflection of said channel,

gradually restoring the link to its normal position, and reverses themovements of the piston-rods 9 and 10 through the lever 15, closing thevalves in the casings 3 and 6 and opening those in the casings 4; and 5,thereby permitting the previous charge in the cylinder to exhaust fromthe left end of the latter and simultaneously permit a charge to enterin the right end of said cylinder to move the piston toward the left andreverse the operation of the lever 36 and slide the door in the oppositedirection or closed.

The proportions and dimensions of the several parts, as well as thedetails of construction, can be changed without departing from thenature or spirit of the invention.

Having thus described the invention, what is claimed as new is 1. In adevice of the character set forth, the combination of a cylinder havinga piston therein, devices for controlling the ingress and exhaust of apropulsive medium to and from said cylinder, an irregularly-channeledsliding link connected to a part of said devices and adapted to beoperated by a projection on an adjacent movable body, and adooroperating lever attached to said piston.

2. In a device of the character set forth, the combination with acylinder provided with valve mechanism and a piston having adooroperatinglever connected thereto, of an irregularly-channeledlaterally-slidable device attached to said valve mechanism and adaptedto be operated bya projection on an adjacent movable body.

3. In a device of the character set forth,

the combination of an actuating-motorhaving.

controlling mechanism, an irregularly-chan neled slidable deviceconnected to said con trolling mechanism and adapted to be operated by aprojection on an adjacent movable object, and a door-operating leverattached to an opposite movable part of said motor.

4. In a device of the character specified, the combination of a cylinderhaving a piston therein, two sets of valves connected to opposite endsof said cylinder, a feed and a dis charge pipe also connected to saidvalves, devices for simultaneously opening and closing opposite valves,an irregularly channeled slidable link attached to the valve-operatingdevices and actuated by a movable projec-- tion, and a door-operatinglever connected to said piston.

5. In a device of the character set forth, the combination with a motorand a door-op erating device actuated thereby, of a slidable linkconnected to said motor and having opposite deflections, and a movableprojection adapted to engage said link.

6. In a device of the character set forth,- the combination with a motorand a door-operating device actuated thereby, of a slidable linkconnected to said motor and having a channel therethrough provided withopposite end deflections and an intermediate straight portion, and amovable projection adapted to engage said link.

7. In a device of the character set forth, the combination with a motorand a door-operating device connected thereto, of a channeled linkconnected to said motor and mounted on slides and having deflections atopposite ends and an intermediate straight portion, and a movableprojection havinga roller to engage said link.

8. In a device of the character set forth, the combination of a cylinderhaving a piston therein, pairs of valves on opposite sides of andattached to the cylinder, a feed and a discharge pipe connected to thevalves, a conjection to engage said link, and a door-opernecting devicebetween the valve-stems of ating lever. 10 each pair of valve-stems, alever pivoted on In testimony whereof I affix my signature one end ofthe cylinder, arms extending from in presence of two witnesses.

5 said lever and attached to the connecting de- ELI B. SLONACHER.

vices of the valve-stems, a pair of bars at- Witnesses: tached to thelever, a slidable link also hav- JAMES MORROW, ing said bars attachedthereto, a movable pro- W. C. LOOR.

